Fixed a bug in  when using has_many association with :inverse_of option and UUID primary key.
Adding documentation to +polymorphic_url+
concerning the options that it inherits from +url_for+. The way that
+polymorhpic_url+ is built allows it to have options
like +:anchor+, +:script_name+, etc. but this is currently not
documented.
Raising an error when nil or non-hash is passed to update_attributes.
Fix typo.
Migration dump UUID default functions to schema.rb. Fixes #10751.
Disable ability to iterate over a Range of TimeWithZone
Creating options for schema dumper.

These options make it easier to change the config from
ActiveRecord::Base to use something else inside of the SchemaDumper.
Rewrite journey routes formatter for performance
Small refactoring changes to generators.

Made a method name clearer (added a bang to the end to show that it
mutates arguments) and extracted indentation into its own method.
Remove unused AV helper fixtures from e10a2531

Several fixtures for helpers are removed. They were introduced in
ActionView by @strzalek but never referenced in any test.
Remove HelperyTestHelper not used in any test

HelperyTestHelper was introduced in 66ef922 by @josevalim
to pair with HelperyTestController. This test controller was
later removed in e10a253 by @strzalek, leaving HelperyTestHelper unused
Remove tzinfo dependency from Action Pack

This gem is used by Active Support but it should not be a dependency of
Action Pack.
Merge pull request #12262 from sferik/remove_tzinfo_from_actionpack

Remove tzinfo dependency from Action Pack
There's no need to do this

AS does the following inside Time.find_zone! ...
`ActiveSupport::TimeZone[time_zone] || TZInfo::Timezone.get(time_zone)`
and given that the test is stubbing AS::TZ[] we don't need the removed
code.
Fix an issue where router can't recognize downcased url encoding path.
Merge pull request #12276 from kennyj/fix_12269

Fix an issue where router can't recognize downcased url encoding path.
do what the superclass does in the case that objects do not match
ActiveRecord::Base#<=> has been removed.  Primary keys may not be in order,
or even be numbers, so sorting by id doesn't make sense.  Please use `sort_by`
and specify the attribute you wish to sort with.  For example, change:

  Post.all.to_a.sort

to:

  Post.all.to_a.sort_by(&:id)
support objects with blank string primary keys
remove unused variable